Native Plants
![](../_images/smarty_plants.gif)
Q. Who is Mr. Smarty Plants?
A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.
Did you know you can access the Native Plant Information Network with your web-enabled smartphone?
Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.
![](../_images/mr_smarty_plants_logo_web_200w.jpg)
rate this answer
![](../_images/star_00.gif)
Tuesday - February 10, 2009
From: Portland, OR
Region: Northwest
Topic: Invasive Plants, Trees
Title: Walnut tree root coming through basement floor in Portland, OR
Answered by: Barbara Medford
QUESTION:
I have a walnut tree root coming through my basement floor. I need advice as to what will it do to tree when I remove the root, like another root though a different part of my home. It is a large tree that has been here for thirty years, and the root came up within the last 3-5 years (didn't notice till huge split in floor). The tree had a hard pruning probably about the same time. I really want to keep the tree but am afraid of killing it when we cut the root.ANSWER:
We're really sorry, but we think you're going to have to choose between the tree and the house. Cutting off that root coming through your basement floor will not only probably not kill the tree, but will inspire it to put out fresh roots. And you're telling us this is the second time the roots have invaded your house? This is undermining your foundation, inviting the incursion of termites and rodents, permitting the development of mildew and can only lead to structural damage. You didn't say which was older, the tree or the house, but the tree was planted too close to the house or the house built too close to the tree; either way, one is going to have to go. Tree roots can extend three times the height of the tree, and are relentless in their search for water and nutrients. You should get a licensed, certified arborist to supervise the removal of the tree and then have a structural engineer examine your house to see how much damage has been done and what is needed to correct it.
More Trees Questions
About Live Oak trees in Austin, Texas
October 19, 2009 - Hello,
I planted a couple texas live oak two years ago in South Austin. They're about 5 feet tall. How long will it take for them to mature?
Thanks
view the full question and answer
Evergreen for privacy in PA
July 18, 2011 - We need to plant a privacy/sound barrier hedge/hedgerow and my husband says it must be evergreen. I am not familiar with which species would be native to our area and I just don't trust those big sto...
view the full question and answer
Floristic Quality Assessment program in Texas?
January 19, 2009 - Do you have knowledge of a Floristic Quality Assessment program for Texas such as the ones used in Indiana and Illinois?
view the full question and answer
Frost protection for non-native citrus trees from Austin
November 24, 2013 - With ice predicted, should I pick citrus, lemons, limes, satsumas that are not quite ready?
view the full question and answer
Planting a tulip poplar in Virginia Beach VA
November 10, 2009 - Hi. I would like to plant a Yellow Poplar, 'Tulip Tree' in my front yard. I will not be able to plant this tree until after November 15th. The tree will receive direct sun and will be exposed to hea...
view the full question and answer
Support the Wildflower Center by Donating Online or Becoming a Member today. |